A Fast Non-Monte-Carlo Yield Analysis and Optimization by Stochastic Orthogonal Polynomials

作者：Gong Fang^*; Liu Xuexin; Yu Hao; Tan Sheldon X D; Ren Junyan; He Lei

来源：ACM Transactions on Design Automation of Electronic Systems, 2012, 17(1): 10.

DOI：10.1145/2071356.2071366

• Design
• Algorithms
• Performance
• Yield analysis
• circuit simulation
• Monte Carlo
• yield optimization

Performance failure has become a significant threat to the reliability and robustness of analog circuits. In this article, we first develop an efficient non-Monte-Carlo (NMC) transient mismatch analysis, where transient response is represented by stochastic orthogonal polynomial (SOP) expansion under PVT variations and probabilistic distribution of transient response is solved. We further define performance yield and derive stochastic sensitivity for yield within the framework of SOP, and finally develop a gradient-based multiobjective optimization to improve yield while satisfying other performance constraints. Extensive experiments show that compared to Monte Carlo-based yield estimation, our NMC method achieves up to 700X speedup and maintains 98% accuracy. Furthermore, multiobjective optimization not only improves yield by up to 95.3% with performance constraints, it also provides better efficiency than other existing methods.

• 出版日期2012-1
• 单位南阳理工学院; 复旦大学